Allentown police are investigating a pair of robberies Tuesday night and a report of houses hit in a drive-by shooting.

Police said that shortly after a robbery at the M&J Grocery store on the 400 block of Second Street at 8:35 p.m., two men with similar descriptions robbed another grocery about a 10-minute walk east.

Capt. Glen Dorney said the two men, armed with handguns and wearing dark clothing, walked into the Dominguez Grocery on the 500 block of Gordon Street about 8:56 p.m. Police said in both robberies the men got an undetermined amount of cash and ran away. No one was hurt in either robbery. Police are investigating any possible connection between the robberies.

Police are also investigating a report of shots fired on the 600 block of Washington Street a few minutes later. Dorney said at 9:02 p.m., two or three houses and three cars were hit with gunfire. Nobody was hurt, police said. The shots may have come from a passing silver car, police said.

Police do not believe that incident is related to a series of gunshots in east Allentown. Dorney said there are no developments in those investigations, which include an incident Saturday night in which a car was shot seven times on Catasauqua Avenue; a 25-year-old man's being shot in the leg Monday night on Lincoln Street near Fullerton Avenue; and, on Tuesday night, a 20-year-old man's being shot in both legs on the 1100 block of Catasauqua Avenue.

Police are asking anyone with information about any of the incidents to call Allentown detectives at 610-437-7721 or text tips to the number 847411 including the word "TIPAPD" in the message.